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// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common_types.h"
#include <cstdlib>
#define b2(x) ( (x) | ( (x) >> 1) )
#define b4(x) ( b2(x) | ( b2(x) >> 2) )
#define b8(x) ( b4(x) | ( b4(x) >> 4) )
#define b16(x) ( b8(x) | ( b8(x) >> 8) )
#define b32(x) (b16(x) | (b16(x) >>16) )
#define ROUND_UP_POW2(x) (b32(x - 1) + 1)
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
/// Textually concatenates two tokens. The double-expansion is required by the C preprocessor.
#define CONCAT2(x, y) DO_CONCAT2(x, y)
#define DO_CONCAT2(x, y) x ## y
// helper macro to properly align structure members.
// Calling INSERT_PADDING_BYTES will add a new member variable with a name like "pad121",
// depending on the current source line to make sure variable names are unique.
#define INSERT_PADDING_BYTES(num_bytes) u8 CONCAT2(pad, __LINE__)[(num_bytes)]
#define INSERT_PADDING_WORDS(num_words) u32 CONCAT2(pad, __LINE__)[(num_words)]
#ifdef _WIN32
// Alignment
#define MEMORY_ALIGNED16(x) __declspec(align(16)) x
#define MEMORY_ALIGNED32(x) __declspec(align(32)) x
#define MEMORY_ALIGNED64(x) __declspec(align(64)) x
#define MEMORY_ALIGNED128(x) __declspec(align(128)) x
#else
// Windows compatibility
#ifdef _LP64
#define _M_X64 1
#else
#define _M_IX86 1
#endif
#define __forceinline inline __attribute__((always_inline))
#define MEMORY_ALIGNED16(x) __attribute__((aligned(16))) x
#define MEMORY_ALIGNED32(x) __attribute__((aligned(32))) x
#define MEMORY_ALIGNED64(x) __attribute__((aligned(64))) x
#define MEMORY_ALIGNED128(x) __attribute__((aligned(128))) x
#endif
#ifndef _MSC_VER
#include <errno.h>
#if defined(__x86_64__) || defined(_M_X64)
#define Crash() __asm__ __volatile__("int $3")
#elif defined(_M_ARM)
#define Crash() __asm__ __volatile__("trap")
#else
#define Crash() exit(1)
#endif
// GCC 4.8 defines all the rotate functions now
// Small issue with GCC's lrotl/lrotr intrinsics is they are still 32bit while we require 64bit
#ifndef _rotl
inline u32 _rotl(u32 x, int shift) {
shift &= 31;
if (!shift) return x;
return (x << shift) | (x >> (32 - shift));
}
inline u32 _rotr(u32 x, int shift) {
shift &= 31;
if (!shift) return x;
return (x >> shift) | (x << (32 - shift));
}
#endif
inline u64 _rotl64(u64 x, unsigned int shift){
unsigned int n = shift % 64;
return (x << n) | (x >> (64 - n));
}
inline u64 _rotr64(u64 x, unsigned int shift){
unsigned int n = shift % 64;
return (x >> n) | (x << (64 - n));
}
#else // _MSC_VER
// Function Cross-Compatibility
#define snprintf _snprintf
// Locale Cross-Compatibility
#define locale_t _locale_t
extern "C" {
__declspec(dllimport) void __stdcall DebugBreak(void);
}
#define Crash() {DebugBreak();}
#endif // _MSC_VER ndef
// Generic function to get last error message.
// Call directly after the command or use the error num.
// This function might change the error code.
// Defined in Misc.cpp.
const char* GetLastErrorMsg();
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